001package org.biopax.paxtools.model.level3;
002
003/**
004 * This enum represents the direction of a catalysis under all physiological conditions if there is one.
005 * Note that chemically a catalyst will increase the rate of the reaction in both directions. In biology,
006 * however, there are cases where the enzyme is expressed only when the controlled bidirectional conversion is
007 * on one side of the chemical equilibrium. olled bidirectional conversion is on one side of the chemical
008 * equilibrium. For example E.Coli's lac operon ensures that lacZ gene is only synthesized when there is enough
009 * lactose in the medium. If that is the case and the controller, under biological conditions,
010 * is always catalyzing the conversion in one direction then this fact can be captured using this property. If
011 * the enzyme is active for both directions, or the conversion is not bidirectional,
012 * this property should be left empty.
013 */
014public enum CatalysisDirectionType
015{
016        LEFT_TO_RIGHT,
017        RIGHT_TO_LEFT
018}